I think he is slightly overrated when it comes to Att/Def. A ratio of 73/66 would be more appropriate for him. He isn't as "good" as a 68 would suggest defensively and 74 in attack is one of the highest ratings (if not the highest) among Asian players in his position.
Few more suggestions that would make more like himself :
Aggression : 82
Mentality: 78, might warrant an even higher value but I am not 100 % sure about this.
Dribble Speed: 82 (79 there doesn't make sense whatsoever).
Shot Accuracy: 67, needs to be standardized. With the current 63, he is rated lower than most CBs in the database.
Shot technique : 69 (This one needs to be slightly above average, I saw him directly striking the ball without control several times and they were pretty neat shots).
And finally, his throws are VERY long, definitely needs the *Long Throw Special Ability/Star.